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lock-and-key theory
genet.	锁钥理论
mol.gen.	锁钥学说
lock and key theory
biotechn.	锁钥理论
life.sc.	酶锁钥学说
physiol.	★ 锁钥学说
Lock and key theory
chem.	锁钥学说关于酶的 (about enzymes)